<!--------------------------------导航栏-------------------------------------->
<div id="nav">
    <div class="container">
        <div class="row" style="margin-top:0px;">
            <div class="col-lg-12" style="background-color: #ff2d4b;">
                <img src="__PUBLIC__/images/LOGO2.png"  class="img-responsive" onclick="back(this)" style="cursor: pointer;"/>
            </div>
        </div>
    </div>
</div>
<script type="text/javascript">
    function back(obj){
        obj.src=window.location.href="{:U('/index')}";
    }
</script>